{"id":1931,"date":"2026-08-07T10:26:18","date_gmt":"2026-08-07T07:26:18","guid":{"rendered":"https:\/\/allinonewpsettings.com\/blog\/?p=1931"},"modified":"2026-08-04T01:11:08","modified_gmt":"2026-08-04T01:11:08","slug":"wordpress-cache-control-headers-explained","status":"publish","type":"post","link":"https:\/\/allinonewpsettings.com\/blog\/wordpress-cache-control-headers-explained\/","title":{"rendered":"WordPress Cache-Control Headers Explained"},"content":{"rendered":"

A CDN may store an account response because the origin marked it public, while a static font is revalidated on every visit. Both problems involve Cache-Control, but copying one header string to every WordPress route would make at least one of them worse.<\/p>\n

Write cache policy for each response class and verify what every intermediary ultimately delivers.<\/p>\n

\nTable of contents<\/strong><\/p>\n
    \n
  1. What it means<\/a><\/li>\n
  2. A realistic WordPress example<\/a><\/li>\n
  3. Why it matters and when to use it<\/a><\/li>\n
  4. A straightforward route for beginners<\/a><\/li>\n
  5. The advanced route<\/a><\/li>\n
  6. Risks, common mistakes, backup, and rollback<\/a><\/li>\n
  7. How AIOWS helps: AIOWS Cache Manager<\/a><\/li>\n
  8. Related AIOWS articles<\/a><\/li>\n
  9. Conclusion and recommended route<\/a><\/li>\n
  10. Official sources<\/a><\/li>\n<\/ol>\n<\/div>\n

    What it means<\/h2>\n

    Cache-Control is an HTTP response field that governs storage, reuse, freshness, validation, and shared-cache behavior. max-age sets freshness for a client, s-maxage can set a separate lifetime for shared caches, private restricts shared storage, no-store requests no storage, and no-cache permits storage but requires validation before reuse.<\/p>\n